CN105502368A - Graphene film and preparation method thereof - Google Patents
Graphene film and preparation method thereof Download PDFInfo
- Publication number
- CN105502368A CN105502368A CN201511023544.0A CN201511023544A CN105502368A CN 105502368 A CN105502368 A CN 105502368A CN 201511023544 A CN201511023544 A CN 201511023544A CN 105502368 A CN105502368 A CN 105502368A
- Authority
- CN
- China
- Prior art keywords
- graphene
- graphene film
- substrate
- film
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/22—Electronic properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/24—Thermal properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
Abstract
The invention relates to a preparation method of a graphene film, which comprises the following steps: (1) dispersing graphene oxide in a solvent to obtain a mixture; (2) pouring the mixture into a knifing machine, carrying out continuous knifing on a substrate at a speed V, and sending the film and substrate into a blast drying tunnel at the speed V to perform drying, thereby obtaining a substrate-bearing graphene oxide film; (3) continuously sending the substrate-bearing graphene oxide film into a pipe furnace at the speed V, and carrying out graphitizing in an inert atmosphere to reduce the graphene oxide and repair the structure defects on the surface, thereby obtaining a substrate-bearing graphene film; and (4) rolling the substrate-bearing graphene film from the pipe furnace, and peeling the substrate to obtain the graphene film. The invention also relates to a graphene film.
Description
Technical field
The present invention relates to technical field of graphene, particularly relate to and a kind of there is graphene film of excellent heat conducting performance and preparation method thereof.
Background technology
In electronics increasing at present, such as smart mobile phone, because of features such as the size of himself are little, electronic component intensity is high, thermal value is large, needs to realize heat sinking function by high heat conductance, lightweight, stable material.In actual applications, there is high thermal conductivity, heat-resisting, corrosion resistant Graphene heat conducting film is excellent solution.
Current published Graphene heat conducting film preparation method is mainly raw material with graphene oxide film, then comes to repair the preparation of surface of graphene oxide textural defect through chemistry or thermal reduction.But these method majorities are intermittent type or semi continuous, namely the preparation process of graphene oxide is intermittent type, or the preparation process of graphene oxide is continous way but chemistry below or thermal reduction are intermittent type, such as document: AdvancedFunctionalMaterials, 2014,24,4542-4548; AdvancedMaterials, 2014,26,4521-4526.
Chinese patent application CN105084858A discloses a kind of method of continuous production graphene film for another example, graphene oxide film is prepared in mode serialization in resistant to elevated temperatures PET film or polyimide film or metallic film that the method is coated with EFI, and then in mistake hydroiodic acid HI or hydrazine hydrate solution, chemical reduction obtains graphene film.Although the method can realize the serialization preparation of graphene film, the mode efficiency of EFI coating is lower, and utilizes chemical reduction mode partly can only repair the textural defect of surface of graphene oxide, and gained graphene film thermal conductivity is not good.Therefore, how to realize the Flexible graphene film that high efficiency continuously preparation has an excellent heat conducting performance and there is larger practical significance.
Summary of the invention
In view of this, necessaryly provide a kind of and can prepare the method for graphene film by high efficiency continuously, this graphene film obtained has excellent heat conducting performance.
The invention provides a kind of preparation method of graphene film, it comprises the following steps:
(1) graphene oxide is scattered in a solvent, obtains a mixture;
(2) this mixture to be poured in knifing machine and carry out serialization knifing with speed V in a substrate, and the rete obtained after knifing is sent into air blast drying tunnel together with substrate with speed V drying, obtaining one with the graphene oxide film of substrate;
(3) the described graphene oxide film with substrate to be sent in tube furnace continuously with speed V and under inert atmosphere, carry out graphitization processing with redox graphene and repair the textural defect on its surface, obtaining the graphene film with substrate;
(4) by from tube furnace out described in carry out, at the bottom of roll extrusion and stripping group, obtaining graphene film with the graphene film of substrate.
Preferably, step (1) solvent is at least one in water, ethanol, N-Methyl pyrrolidone, DMF, N,N-dimethylacetamide.
Preferably, the weight ratio of step (1) described graphene oxide and solvent is 1:(10 ~ 50).
Preferably, step (1) described graphene oxide is peeled off by graphite oxide thermal expansion and is prepared.
Preferably, the width of the scraper of step (2) described knifing machine is 1 centimetre ~ 50 centimetres, and thickness is 1 micron ~ 1000 microns.
Preferably, step (2) described substrate is flexible graphite paper, and thickness is 10 microns ~ 500 microns, and the temperature of described air blast drying tunnel is 50 DEG C ~ 200 DEG C.
Preferably, step (2) described speed V is 0.1 m/h ~ 100 ms/h.
Preferably, the temperature in step (3) described tube furnace is 1500 DEG C ~ 3000 DEG C.
Preferably, step (4) before rolling, also comprises the step that a pair graphene film with substrate carries out naturally cooling.
The present invention also provides a kind of graphene film adopting described preparation method to prepare, and the thickness of described graphene film is 1 micron ~ 50 microns, and specific conductivity is greater than 1000S/cm, and plane thermal conductivity is greater than 1000W/ (mK).
Compared with prior art, the preparation method of graphene film provided by the invention has the following advantages: the textural defect effectively can being repaired described surface of graphene oxide by the graphitization processing of carrying out high temperature in inert atmosphere, therefore obtained graphene film textural defect is few, specific conductivity and thermal conductivity are very high, and snappiness is fine.This Graphene heat conducting film is applied to multiple fields such as heat radiation.In addition, step (2) and step (3) can be carried out continuously, and its running speed is consistent, can realize serialization and prepare graphene film, and technique is simple, easy handling and industrialization.
The graphene oxide that graphite oxide thermal expansion can be adopted in step (1) to peel off obtain is as raw material, the graphene oxide itself obtained due to the method has had certain extent of exfoliation, so through simple agitation and short period of time ultrasonic just can being scattered in solvent makes dense thick paste mixture, be conducive to follow-up scraping membrane process.Separately, the raw material preparing graphene oxide in this graphite oxide thermal expansion stripping method is natural graphite, wide material sources, be easy to get, with low cost.
Adopt in step (2) flexible graphite paper as substrate, this graphite paper not only can bear high graphitization temperature, flexible, and reusable.
Carry out width and the thickness of graphene oxide film described in Effective Regulation by the width of the scraper of knifing machine and thickness in step (2), thus, can the graphene film of controlled preparation specific width and thickness according to specific needs.
Accompanying drawing explanation
Fig. 1 is the stereoscan photograph of the section of the graphene film that embodiment 1 obtains.
Following specific embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Below will be described further graphene film provided by the invention and preparation method thereof.
The invention provides a kind of preparation method of graphene film, it comprises following step:
S1, is scattered in graphene oxide in a solvent, obtains a mixture;
S2, to pour into this mixture in knifing machine and carry out serialization knifing with speed V in a substrate, and the rete obtained after knifing is sent into air blast drying tunnel together with substrate with speed V dries, and obtains one with the graphene oxide film of substrate;
S3, to send into the described graphene oxide film with substrate continuously in tube furnace with speed V and under inert atmosphere, carries out graphitization processing with redox graphene and repair the textural defect on its surface, obtain the graphene film with substrate; And
S4, by from tube furnace out described in in the graphene film of substrate substrate peel off, obtain graphene film.
In step sl, be scattered in solvent by graphene oxide described in ultrasonic method, and obtain a dense thick paste mixture.
Described graphene oxide is peeled off by graphite oxide thermal expansion and is prepared.The graphene oxide itself obtained due to the method has had certain extent of exfoliation, so through simple agitation and short period of time ultrasonic just can being scattered in solvent makes dense thick paste mixture, is conducive to follow-up scraping membrane process.Separately, it is natural graphite that the raw material preparing graphene oxide is peeled off in preparation method in this graphite oxide thermal expansion, wide material sources, be easy to get, with low cost.
Described solvent is at least one in water, ethanol, N-Methyl pyrrolidone, DMF, N,N-dimethylacetamide.
The weight ratio of described graphene oxide and solvent is 1:(10 ~ 50).Preferably, the weight ratio of described graphene oxide and solvent is 1:(10 ~ 30).
In step s 2, by being set as consistent by speed V during knifing with the speed V of the motion of rete in drying course, continuous operations can be realized, greatly raising efficiency.Described speed V is 0.1 m/h ~ 100 ms/h.Preferably, described speed V is 5 ms/h ~ 50 ms/h.
Described substrate can be flexible graphite paper, and thickness is 10 microns ~ 500 microns, is preferably 50 microns ~ 100 microns.Adopt flexible graphite paper as substrate, this graphite paper not only can bear high graphitization temperature, flexible, and reusable.
The width of the scraper of described knifing machine and thickness can be arranged according to specific needs, and preferably, the width of scraper can be 1 centimetre ~ 50 centimetres, and thickness can be 1 micron ~ 1000 microns.Preferred, the width of scraper can be 10 centimetres ~ 30 centimetres, and thickness can be 100 microns ~ 1000 microns.Be appreciated that the width and the thickness that carry out graphene oxide film described in Effective Regulation by the width of the scraper of knifing machine and thickness, thus, can the graphene film of controlled preparation specific width and thickness according to specific needs.
The temperature of described air blast drying tunnel is 50 DEG C ~ 200 DEG C, is preferably 70 DEG C ~ 150 DEG C.The air blast of described air blast drying tunnel can be blown out by the both sides of air blast drying tunnel.
In step s3, graphitization processing can decompose the oxy radical of surface of graphene oxide, reduces the spacing between graphene layer; The textural defect of surface of graphene oxide can also be repaired simultaneously, and make graphene sheet layer that crystallization again occur and coalescence becomes the larger graphene sheet layer of size, obtain the graphene film with similar graphite-structure.
Temperature in described tube furnace can be 1500 DEG C ~ 3000 DEG C.Be preferably 2000 DEG C ~ 2800 DEG C.
In step s 4 which, before rolling, the step that a pair graphene film with substrate carries out naturally cooling can be comprised.After at the bottom of stripping group, can by direct for graphene film rolling, the graphene film of obtained rolling.
Be appreciated that the running speed of this step S4 can be identical with the speed V of step S2 and S3, be beneficial to realize higher efficiency.
The present invention also provides a kind of graphene film adopting above-mentioned preparation method to prepare.The thickness of described graphene film is 1 micron ~ 50 microns, and specific conductivity is greater than 1000S/cm, and plane thermal conductivity is greater than 1000W/ (mK).This graphene film has excellent snappiness.This Graphene heat conducting film is applied to multiple fields such as heat radiation.
Compared with prior art, the preparation method of graphene film provided by the invention has the following advantages: the textural defect effectively can being repaired described surface of graphene oxide by high temperature graphitization process under inert atmosphere, therefore obtained graphene film textural defect is few, specific conductivity and thermal conductivity are very high, and snappiness is fine.In addition, step (2) and step (3) can be carried out continuously, and its running speed is consistent, can realize serialization and prepare graphene film, and technique is simple, easy handling and industrialization.
Below, will further illustrate in conjunction with specific embodiments.
Embodiment 1
Step 1: join in the water of 10 weight parts by the thermal expansion graphene oxide powder of 1 weight part, then high-speed stirring ultrasonic disperse, obtain the dense thick slurries of graphene oxide that weight ratio is 1:10.
Step 2: the hopper dense thick slurries of graphene oxide of preparation in step 1 being poured into automatic knifing machine, regulate blade width to 10 centimetre, thickness to 100 micron, then in soft graphite paper substrates, the operation of serialization knifing is carried out with the speed of 5 ms/h, after this sending into temperature with identical speed is carry out drying and processing in the air blast drying tunnel of 90 DEG C, obtains the graphene oxide film with substrate.
Step 3: the graphene oxide film with substrate out from step 2 drying tunnel is sent into be filled with rare gas element and to be warming up in the tube furnace of 2800 DEG C with the speed of 5 ms/h continuously and carries out graphitization processing with redox graphene and repair the textural defect on its surface, obtain the graphene film with substrate.
Step 4: the graphene film with substrate out from step 3 tube furnace is carried out Temperature fall, directly rolling after then carrying out roll extrusion and peeling off base treatment, obtained width is 10 centimetres, and thickness is the graphene film of the rolling of 4 microns.
Through test, the section of this graphene film has laminate structure (see Fig. 1).The specific conductivity of this graphene film is 7000S/cm, and plane thermal conductivity is 2700W/ (mK), and the graphene film of gained has very high toughness, can not rupture for 1000 times through alternating bending.
Embodiment 2
Step 1: join in the DMF of 10 weight parts by the thermal expansion graphene oxide powder of 1 weight part, then high-speed stirring ultrasonic disperse, obtain the dense thick slurries of graphene oxide that weight ratio is 1:10.
Step 2: the hopper dense thick slurries of graphene oxide of preparation in step 1 being poured into automatic knifing machine, regulate blade width to 10 centimetre, thickness to 200 micron, then in soft graphite paper substrates, the operation of serialization knifing is carried out with the speed of 5 ms/h, after this sending into temperature with identical speed is carry out drying and processing in the air blast drying tunnel of 140 DEG C, obtains the graphene oxide film with substrate.
Step 3: the graphene oxide film with substrate out from step 2 drying tunnel is sent into be filled with rare gas element and to be warming up in the tube furnace of 2000 DEG C with the speed of 5 ms/h continuously and carries out graphitization processing with redox graphene and repair the textural defect on its surface, obtain the graphene film with substrate.
Step 4: the graphene film with substrate out from step 3 tube furnace is carried out Temperature fall, directly rolling after then carrying out roll extrusion and peeling off base treatment, obtained width is 10 centimetres, and thickness is the graphene film of the rolling of 10 microns.
Through test, the specific conductivity of this graphene film is 2000S/cm, and plane thermal conductivity is 1400W/ (mK), and the graphene film of gained has very high toughness, can not rupture for 1000 times through alternating bending.
Embodiment 3
Step 1: join in the N,N-dimethylacetamide of 10 weight parts by the thermal expansion graphene oxide powder of 1 weight part, then high-speed stirring ultrasonic disperse, obtain the dense thick slurries of graphene oxide that weight ratio is 1:10.
Step 2: the hopper dense thick slurries of graphene oxide of preparation in step 1 being poured into automatic knifing machine, regulate blade width to 20 centimetre, thickness to 150 micron, then in soft graphite paper substrates, the operation of serialization knifing is carried out with the speed of 8 ms/h, after this sending into temperature with identical speed is carry out drying and processing in the air blast drying tunnel of 150 DEG C, obtains the graphene oxide film with substrate.
Step 3: the graphene oxide film with substrate out from step 2 drying tunnel is sent into be filled with rare gas element and to be warming up in the tube furnace of 2800 DEG C with the speed of 8 ms/h continuously and carries out graphitization processing with redox graphene and repair the textural defect on its surface, obtain the graphene film with substrate;
Step 4: the graphene film with substrate out from step 3 tube furnace is carried out Temperature fall, directly rolling after then carrying out roll extrusion and peeling off base treatment, obtained width is 20 centimetres, and thickness is the graphene film of the rolling of 7 microns.
Through test, the specific conductivity of this graphene film is 5000S/cm, and plane thermal conductivity is 2400W/ (mK), and the graphene film of gained has very high toughness, can not rupture for 1000 times through alternating bending.
Embodiment 4
Step 1: in the water that the thermal expansion graphene oxide powder of 1 weight part is joined 20 weight parts and DMF blended liquid, then high-speed stirring ultrasonic disperse, obtain the dense thick slurries of graphene oxide that weight ratio is 1:20.
Step 2: the hopper dense thick slurries of graphene oxide of preparation in step 1 being poured into automatic knifing machine, regulate blade width to 20 centimetre, thickness to 500 micron, then in soft graphite paper substrates, the operation of serialization knifing is carried out with the speed of 10 ms/h, after this sending into temperature with identical speed is carry out drying and processing in the air blast drying tunnel of 120 DEG C, obtains the graphene oxide film with substrate.
Step 3: the graphene oxide film with substrate out from step 2 drying tunnel is sent into be filled with rare gas element and to be warming up in the tube furnace of 2300 DEG C with the speed of 10 ms/h continuously and carries out graphitization processing with redox graphene and repair the textural defect on its surface, obtain the graphene film with substrate.
Step 4: the graphene film with substrate out from step 3 tube furnace is carried out Temperature fall, directly rolling after then carrying out roll extrusion and peeling off base treatment, obtained width is 20 centimetres, and thickness is the graphene film of the rolling of 20 microns.
Through test, the specific conductivity of this graphene film is 2000S/cm, and plane thermal conductivity is 1600W/ (mK), and the graphene film of gained has very high toughness, can not rupture for 1000 times through alternating bending.
Embodiment 5
Step 1: join in the ethanol of 15 weight parts by the thermal expansion graphene oxide powder of 1 weight part, then high-speed stirring ultrasonic disperse, obtain the dense thick slurries of graphene oxide that weight ratio is 1:15.
Step 2: the hopper dense thick slurries of graphene oxide of preparation in step 1 being poured into automatic knifing machine, regulate blade width to 30 centimetre, thickness to 300 micron, then in soft graphite paper substrates, the operation of serialization knifing is carried out with the speed of 4 ms/h, after this sending into temperature with identical speed is carry out drying and processing in the air blast drying tunnel of 60 DEG C, obtains the graphene oxide film with substrate.
Step 3: the graphene oxide film with substrate out from step 2 drying tunnel is sent into be filled with rare gas element and to be warming up in the tube furnace of 2800 DEG C with the speed of 4 ms/h continuously and carries out graphitization processing with redox graphene and repair the textural defect on its surface, obtain the graphene film with substrate.
Step 4: the graphene film with substrate out from step 3 tube furnace is carried out Temperature fall, directly rolling after then carrying out roll extrusion and peeling off base treatment, obtained width is 30 centimetres, and thickness is the graphene film of the rolling of 15 microns.
Through test, this graphene film specific conductivity is 7000S/cm, and plane thermal conductivity is 2700W/ (mK).And the graphene film of gained has very high toughness, can not rupture for 1000 times through alternating bending.
Embodiment 6
Step 1: join in the N-Methyl pyrrolidone of 25 weight parts by the thermal expansion graphene oxide powder of 1 weight part, then high-speed stirring ultrasonic disperse, obtain the dense thick slurries of graphene oxide that weight ratio is 1:25.
Step 2: the hopper dense thick slurries of graphene oxide of preparation in step 1 being poured into automatic knifing machine, regulate blade width to 10 centimetre, thickness to 800 micron, then in soft graphite paper substrates, the operation of serialization knifing is carried out with the speed of 15 ms/h, after this sending into temperature with identical speed is carry out drying and processing in the air blast drying tunnel of 150 DEG C, obtains the graphene oxide film with substrate.
Step 3: graphene oxide film out from step 2 drying tunnel is sent into be filled with rare gas element and to be warming up in the tube furnace of 2800 DEG C with the speed of 15 ms/h continuously and carries out graphitization processing with redox graphene and repair the textural defect on its surface, obtain the graphene film with substrate.
Step 4: the graphene film with substrate out from step 3 tube furnace is carried out Temperature fall, directly rolling after then carrying out roll extrusion and peeling off base treatment, obtained width is 10 centimetres, and thickness is the graphene film of the rolling of 30 microns.
Through test, the specific conductivity of this graphene film is 5000S/cm, and plane thermal conductivity is 2000W/ (mK).And the graphene film of gained has very high toughness, can not rupture for 1000 times through alternating bending
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a preparation method for graphene film, it comprises the following steps:
(1) graphene oxide is scattered in a solvent, obtains a mixture;
(2) this mixture to be poured in knifing machine and carry out serialization knifing with speed V in a substrate, and the rete obtained after knifing is sent into air blast drying tunnel together with substrate with speed V drying, obtaining one with the graphene oxide film of substrate;
(3) the described graphene oxide film with substrate to be sent in tube furnace continuously with speed V and under inert atmosphere, carry out graphitization processing with redox graphene and repair the textural defect on its surface, obtaining the graphene film with substrate;
(4) by from tube furnace out described in carry out, at the bottom of roll extrusion and stripping group, obtaining graphene film with the graphene film of substrate.
2. the preparation method of graphene film as claimed in claim 1, it is characterized in that, step (1) solvent is at least one in water, ethanol, N-Methyl pyrrolidone, DMF, N,N-dimethylacetamide.
3. the preparation method of graphene film as claimed in claim 1, it is characterized in that, the weight ratio of step (1) described graphene oxide and solvent is 1:(10 ~ 50).
4. the preparation method of graphene film as claimed in claim 1, is characterized in that, step (1) described graphene oxide is peeled off by graphite oxide thermal expansion and prepared.
5. the preparation method of graphene film as claimed in claim 1, it is characterized in that, the width of the scraper of step (2) described knifing machine is 1 centimetre ~ 50 centimetres, and thickness is 1 micron ~ 1000 microns.
6. the preparation method of graphene film as claimed in claim 1, it is characterized in that, step (2) described substrate is flexible graphite paper, and thickness is 10 microns ~ 500 microns, and the temperature of described air blast drying tunnel is 50 DEG C ~ 200 DEG C.
7. the preparation method of graphene film as claimed in claim 1, it is characterized in that, step (2) described speed V is 0.1 m/h ~ 100 ms/h.
8. the preparation method of graphene film as claimed in claim 1, it is characterized in that, the temperature in step (3) described tube furnace is 1500 DEG C ~ 3000 DEG C.
9. the preparation method of graphene film as claimed in claim 1, is characterized in that, step (4) before rolling, also comprises the step that a pair graphene film with substrate carries out naturally cooling.
10. one kind adopts the graphene film as any one of claim 1 ~ 9 preparation method prepares, it is characterized in that, the thickness of described graphene film is 1 micron ~ 50 microns, and specific conductivity is greater than 1000S/cm, and plane thermal conductivity is greater than 1000W/ (mK).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023544.0A CN105502368B (en) | 2015-12-30 | 2015-12-30 | A kind of preparation method of graphene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023544.0A CN105502368B (en) | 2015-12-30 | 2015-12-30 | A kind of preparation method of graphene film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105502368A true CN105502368A (en) | 2016-04-20 |
| CN105502368B CN105502368B (en) | 2018-09-25 |
Family
ID=55710755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511023544.0A Active CN105502368B (en) | 2015-12-30 | 2015-12-30 | A kind of preparation method of graphene film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105502368B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495133A (en) * | 2016-11-09 | 2017-03-15 | 嘉兴中易碳素科技有限公司 | High heat conduction Flexible graphene method for manufacturing thin film |
| CN106629675A (en) * | 2016-09-28 | 2017-05-10 | 上海理工大学 | Preparation method of high-heat-conduction flexible graphene film |
| CN107140619A (en) * | 2017-05-27 | 2017-09-08 | 杭州高烯科技有限公司 | A kind of graphene thick film of high heat conduction and preparation method thereof |
| CN107474520A (en) * | 2017-09-07 | 2017-12-15 | 常州二维碳素科技股份有限公司 | A kind of highly conductive graphene flexible compound film and preparation method thereof |
| CN108425271A (en) * | 2018-03-23 | 2018-08-21 | 齐鲁工业大学 | A kind of paper substrate Flexible graphene film and preparation method thereof |
| CN108862249A (en) * | 2018-08-23 | 2018-11-23 | 大同新成新材料股份有限公司 | A kind of preparation method of graphene film |
| CN109721047A (en) * | 2019-02-25 | 2019-05-07 | 天津艾克凯胜石墨烯科技有限公司 | A kind of restorative procedure of graphene defect |
| CN109801758A (en) * | 2018-12-27 | 2019-05-24 | 中国科学院山西煤炭化学研究所 | A kind of preparation process of graphene conductive film |
| CN111601407A (en) * | 2020-05-08 | 2020-08-28 | 安徽宇航派蒙健康科技股份有限公司 | Graphene heating film for electric heating picture and preparation method thereof |
| CN111609454A (en) * | 2020-05-08 | 2020-09-01 | 安徽宇航派蒙健康科技股份有限公司 | Electric heating picture and preparation method thereof |
| CN111654929A (en) * | 2020-05-08 | 2020-09-11 | 安徽宇航派蒙健康科技股份有限公司 | Graphene heating body for electric heating picture and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508447A (en) * | 2012-06-26 | 2014-01-15 | 海洋王照明科技股份有限公司 | Preparation method of graphene |
| CN104973590A (en) * | 2014-04-11 | 2015-10-14 | 中国科学院上海硅酸盐研究所 | Method of preparing high-heat-conductive and high-electric-conductive thin film through dispersion of high-quality graphite powder and graphene with graphene oxide |
| CN105110794A (en) * | 2015-08-07 | 2015-12-02 | 常州富烯科技股份有限公司 | Graphene film and preparation method therefor |
-
2015
- 2015-12-30 CN CN201511023544.0A patent/CN105502368B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508447A (en) * | 2012-06-26 | 2014-01-15 | 海洋王照明科技股份有限公司 | Preparation method of graphene |
| CN104973590A (en) * | 2014-04-11 | 2015-10-14 | 中国科学院上海硅酸盐研究所 | Method of preparing high-heat-conductive and high-electric-conductive thin film through dispersion of high-quality graphite powder and graphene with graphene oxide |
| CN105110794A (en) * | 2015-08-07 | 2015-12-02 | 常州富烯科技股份有限公司 | Graphene film and preparation method therefor |
Non-Patent Citations (1)
| Title |
|---|
| BIN SHEN ET AL.: "Ultrathin Flexible Graphene Film: An Excellent Thermal Conducting Material with Efficient EMI Shielding", 《ADVANCED FUNCTIONAL MATERIALS》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629675A (en) * | 2016-09-28 | 2017-05-10 | 上海理工大学 | Preparation method of high-heat-conduction flexible graphene film |
| CN106495133A (en) * | 2016-11-09 | 2017-03-15 | 嘉兴中易碳素科技有限公司 | High heat conduction Flexible graphene method for manufacturing thin film |
| CN107140619B (en) * | 2017-05-27 | 2019-09-03 | 杭州高烯科技有限公司 | A kind of graphene thick film of high thermal conductivity and preparation method thereof |
| CN107140619A (en) * | 2017-05-27 | 2017-09-08 | 杭州高烯科技有限公司 | A kind of graphene thick film of high heat conduction and preparation method thereof |
| CN107474520A (en) * | 2017-09-07 | 2017-12-15 | 常州二维碳素科技股份有限公司 | A kind of highly conductive graphene flexible compound film and preparation method thereof |
| CN107474520B (en) * | 2017-09-07 | 2020-05-22 | 常州二维暖烯科技有限公司 | High-conductivity graphene flexible composite film and preparation method thereof |
| CN108425271A (en) * | 2018-03-23 | 2018-08-21 | 齐鲁工业大学 | A kind of paper substrate Flexible graphene film and preparation method thereof |
| CN108862249A (en) * | 2018-08-23 | 2018-11-23 | 大同新成新材料股份有限公司 | A kind of preparation method of graphene film |
| CN109801758A (en) * | 2018-12-27 | 2019-05-24 | 中国科学院山西煤炭化学研究所 | A kind of preparation process of graphene conductive film |
| CN109801758B (en) * | 2018-12-27 | 2020-08-28 | 中国科学院山西煤炭化学研究所 | Preparation process of graphene conductive film |
| CN109721047A (en) * | 2019-02-25 | 2019-05-07 | 天津艾克凯胜石墨烯科技有限公司 | A kind of restorative procedure of graphene defect |
| CN111601407A (en) * | 2020-05-08 | 2020-08-28 | 安徽宇航派蒙健康科技股份有限公司 | Graphene heating film for electric heating picture and preparation method thereof |
| CN111609454A (en) * | 2020-05-08 | 2020-09-01 | 安徽宇航派蒙健康科技股份有限公司 | Electric heating picture and preparation method thereof |
| CN111654929A (en) * | 2020-05-08 | 2020-09-11 | 安徽宇航派蒙健康科技股份有限公司 | Graphene heating body for electric heating picture and preparation method thereof |
| CN111654929B (en) * | 2020-05-08 | 2022-07-29 | 安徽宇航派蒙健康科技股份有限公司 | Graphene heating body for electric heating picture and preparation method thereof |
| CN111601407B (en) * | 2020-05-08 | 2023-02-17 | 安徽宇航派蒙健康科技股份有限公司 | Graphene heating film for electric heating picture and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105502368B (en) | 2018-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105502368A (en) | Graphene film and preparation method thereof | |
| CN104129780B (en) | Graphene film and preparation method thereof | |
| CN103265012B (en) | Methods for preparing large-area graphene film and large-area graphene composite films | |
| CN105236392B (en) | Carbon nano tube/graphene laminated film and preparation method thereof | |
| CN106629675A (en) | Preparation method of high-heat-conduction flexible graphene film | |
| CN106086979A (en) | A kind of Graphene/metallic composite and preparation method thereof | |
| CN105355870A (en) | Expanded graphite and nano-silicon composite material, preparation method thereof, electrode plate and battery | |
| CN110387215B (en) | Graphene foam phase-change composite material with sparse thermal protection structure and preparation method thereof | |
| CN103342472A (en) | Method for transferring graphene film | |
| CN104164208B (en) | A kind of preparation method of Graphene/polyimides composite adhesive | |
| CN104475316A (en) | Preparing method of graphene coating | |
| CN107697911B (en) | Method for preparing natural graphite heat dissipation film from graphite oxide | |
| CN106276862A (en) | A kind of volume to volume shifts the device of Graphene continuously | |
| CN102975417A (en) | Thermal-conducting fiber reinforced high-thermal-conductivity graphite radiating fin and preparation method thereof | |
| CN205213232U (en) | A heat radiation structure for liquid crystal display equipment | |
| CN104130719A (en) | Graphene oxide conductive adhesive and preparation and using method of graphene oxide conductive adhesive | |
| CN109181654A (en) | A kind of graphene-based composite heat conduction film and preparation method thereof and its application | |
| CN104057653A (en) | Graphite membrane/metal composite cooling fin and preparation method thereof | |
| CN106495147A (en) | A kind of method that catalyzed graphitization prepares high heat conduction graphite | |
| CN107686109A (en) | A kind of preparation method of the double-deck carbon-based heat conduction film of high performance graphite graphene | |
| CN102627856B (en) | Polyimide film of high-peel-strength flexible printed circuit board, preparation method thereof and printed circuit board made of polyimide film | |
| CN114408908B (en) | Graphene heat dissipation film and preparation method thereof | |
| CN112225201A (en) | Method for preparing thick graphene heat dissipation film by utilizing silk screen | |
| CN110204214A (en) | A kind of preparation method of graphene-based film | |
| CN104451591B (en) | A kind of method that Graphene by copper surface CVD shifts to target substrate surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |